Turbine rotor fabrication using cold spraying
US8261444B2 · kind B2 · utility
10Cited by
7References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 7, 2009 |
| Grant date | Sep 11, 2012 |
| Priority date | — |
| Expiry date | Oct 7, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4998
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing a rotor includes: (a) providing a core shaft; (b) cold spraying alloy powder particles onto the core shaft; (c) controlling the cold spraying to form sections at least of different shape along the core shaft to thereby form a near-net shape rotor; and (d) heat treating the near-net shape rotor to relieve stresses and to form diffusion bonding across interfaces between individual powder particles and the core shaft, and finish-shaping said near-net shape rotor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.